Thanks sinan. I use a 2.5 hss square graver , I grind the cutting edge to about 60 degrees on a wet wheel that has a slight curve which makes the tip slightly pointing down. I find this helps me, I can lower the angle of the tool when doing dots . I've addad a photo of my tool from a side angle as its hard to explain. There is no paint or ink addad.

Thanks sinan. I use a 2.5 hss square graver , I grind the cutting edge to about 60 degrees on a wet wheel that has a slight curve which makes the tip slightly pointing down. I find this helps me, I can lower the angle of the tool when doing dots . I've addad a photo of my tool from a side angle as its hard to explain. There is no paint or ink addad.

Thank you to show your graver my bulino work is not good as yours. I will try to make graver for me as yours.